1 (18.25 ounce) box cake mix (pudding included or not)
2 small boxes instant pudding (any complimentary flavor)
1 cup confectioners' sugar
4 cups cold milk
Prepare cake as directed on package, baking in a 13 x 9-inch pan.
Remove from oven. Poke holes at once through the cake to the pan with the
round handle of a wooden spoon; holes should be at 1-inch intervals.
Combine pudding mix with sugar in a large bowl; gradually stir in milk.
Beat on low speed of electric mixer for not more than 1 minute. Quickly, before
pudding thickens, pour about 1/2 the thin pudding evenly over warm cake and
into holes to make the stripes.
Allow remaining pudding to thicken slightly, then spoon over the top, swirling
it to "frost" the cake.